What are enzymes?
Enzymes

Flashcard
•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Enzymes are biological catalysts that speed up chemical reactions in living organisms, primarily composed of proteins.
2.
FLASHCARD QUESTION
Front
What is the optimum pH for most enzymes?
Back
The optimum pH varies for different enzymes, but many enzymes function best at a neutral pH of around 7, while others, like pepsin, work best in acidic conditions (pH 1.5-2.0).
3.
FLASHCARD QUESTION
Front
What happens to an enzyme when it is denatured?
Back
When an enzyme is denatured, its three-dimensional structure is altered, causing it to lose its active site shape and, consequently, its ability to catalyze reactions.
4.
FLASHCARD QUESTION
Front
What is the active site of an enzyme?
Back
The active site is a specific region on the enzyme where substrate molecules bind and undergo a chemical reaction.
5.
FLASHCARD QUESTION
Front
What is the enzyme-substrate complex?
Back
The enzyme-substrate complex is formed when a substrate binds to the active site of an enzyme, allowing the reaction to occur.
6.
FLASHCARD QUESTION
Front
What factors can affect enzyme activity?
Back
Factors that can affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.
7.
FLASHCARD QUESTION
Front
What is an inhibitor in the context of enzymes?
Back
An inhibitor is a substance that decreases the activity of an enzyme by binding to it and preventing substrate binding or altering its function.
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